Fuel injection pump for internal combustion engines

US4478195A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Richard Dorenkamp · Isenbüttel, DE
• Werner Faupel · Wyoming, US
• Gerhard Geyer · Munich, DE
• Erich Jager · Bad Marienberg, DE

Key dates

• Filing date: May 19, 1982
• Grant date: Oct 23, 1984
• Expiry date: May 19, 2002

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M41/128
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fuel injection pump for internal combustion engines having an injection timing adjustment by means of a hydraulically actuated piston is proposed, the injection timing adjustment being loaded by two restoring springs. Between the two springs, which have different forces, there is a common spring support plate. The variable functional path of the springs is determined by means of a stop and a coupler member.